Nutrition Facts Label = "Do Not Eat" Warning Label?

It struck me that anything required by law to have a Nutrition Facts Label should in fact be avoided according to Paleo principles. It seems like only processed foods are required to have Nutrition Facts labels, and those are precisely the "foods" that we should avoid!

Is a Nutrition Facts Label actually a "Do Not Eat" warning label in disguise? Are there any exceptions?

This is akin to the admonition to shop the periphery of the grocery store (eggs, dairy, meat, produce) and avoid the aisles. But then of course you miss the frozen veggies, canned sardines, etc.

Labels are definitely important. That carton of heavy cream seems harmless, but a look at the label might show not only cream but added thickening agents. Or the package of healthful looking nuts, roasted in cottonseed oil. Ruh-roh.